Dual power supply switching system operating in parallel for providing power to a plurality of LED display modules

a technology of led display modules and switching systems, applied in the field of electronic signs, can solve the problems of insufficient operating power capacity of prior art power supply devices for electronic signs, inability to provide alternative power sourcing or suitable stable source backup,

Active Publication Date: 2009-03-10
DAKTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0015]A still further significant aspect and feature of the present invention is the use of an adjustable switching regulator to provide an adjustable voltage for the LEDs, allowing for different quantities and characteristics of the LEDs.
[0016]Still another significant aspect and feature of the present invention is the inclusion of jumpers located on individual LED module display boards which are detected by the individual microcontrollers on each individual LED module display board for furnishing of proper operating current for each individual LED module display board.

Problems solved by technology

Prior art power supply devices for electronic signs, while providing sufficient operating power capacity, do not provide for alternative power sourcing or suitable stable source backup in the event of operating problems, such as, but not restricted to, undervoltage, partial power interruption, monitoring of voltage, and monitoring and diagnosis of other electrical parameters crucial to operation of an electronic sign.

Method used

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  • Dual power supply switching system operating in parallel for providing power to a plurality of LED display modules
  • Dual power supply switching system operating in parallel for providing power to a plurality of LED display modules
  • Dual power supply switching system operating in parallel for providing power to a plurality of LED display modules

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Embodiment Construction

[0022]FIG. 1 is a schematic block diagram of a dual power supply switching system 10, the present invention. A first power supply 12, preferably a DC power supply, powers a main bus 14 to supply power to a plurality of distribution buses 16a-16n. The distribution buses 16a-16n furnish power to a plurality of LED display modules 18a-18n arranged repetitively in rows 20a-20n as an array, wherein each of the LED display modules 18a-18n includes a microcontroller with an address being an odd integer address or an even integer address ranging from 1 to n integers. A second power supply 22, similar in construction and capacity to the first power supply 12, supplies power to another main bus 24 to furnish power to a plurality of distribution buses 26a-26n. The distribution buses 26a-26n furnish power to the same plurality of LED display modules 18a-18n arranged repetitively in rows 20a-20n with an address being either an odd integer address or an even integer address ranging from 1 to n in...

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Abstract

A dual power supply switching system for use in an electronic sign where independent suitably sized power supplies each capable of independently powering an entire plurality of LED display modules supply power on an alternating distributed basis to the plurality of LED display modules. A microcontroller having an odd or even address on each LED display module controls the connection of the respective LED display module to a particular power supply by controlling onboard solid state switches and, upon sensing an inadequate power source supply, switches to the other power supply to re-establish power to the LED display module.

Description

CROSS REFERENCES TO RELATED APPLICATIONS[0001]None.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to the field of electronic signs, and more particularly, is a dual power supply switching system for use in electronic signs incorporating LED (light emitting diode) display panels or other style electronic signs.[0004]2. Description of the Prior Art[0005]Prior art power supply devices for electronic signs, while providing sufficient operating power capacity, do not provide for alternative power sourcing or suitable stable source backup in the event of operating problems, such as, but not restricted to, undervoltage, partial power interruption, monitoring of voltage, and monitoring and diagnosis of other electrical parameters crucial to operation of an electronic sign.SUMMARY OF THE INVENTION[0006]The general purpose of the present invention is to provide a dual power supply switching system which is incorporated into use with an electronic...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G06F1/00G05F5/00G06F11/00G06F11/30
CPCG06F3/1446G09G3/32G09F9/3026G06F11/2015G09G2300/026G09G2330/02G09G2330/021G09G2330/028G09G2330/04G09G2330/08
Inventor BRANDS, JASON L.
Owner DAKTRONICS
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